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i have a user in Active Directory that i cannot delete:

If i try to delete:

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i get the error:

enter image description here

If i try to rename the user, i get the error:

enter image description here

If i try to view Properties of the user, i get the error:

enter image description here

What's up with that?

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That doesn't look like a user. What's the objectClass? – Shane Madden Mar 15 '12 at 18:53
Do you have more than one domain controller (DC)? – Evan Anderson Mar 15 '12 at 18:54
Do you have more than one DC? If so, connect ADUC to another DC and see what state the object is in (if it exists). If the object is editable/deleteable (is that a word?) from another DC, or if it doesn't exist on another DC then you've got a replication problem. You can check the state of replication from a command prompt on each DC by running repadmin/showrepl. – joeqwerty Mar 15 '12 at 18:55
@ShaneMadden: I suspect that he can't query the objectClass. This has the look of a replication conflict resolution but I can't quite put my finger on it. – Evan Anderson Mar 15 '12 at 18:55

Check Event Log for errors in Domain Controllers synchronisation (if you have more than one DC) or any other errors related to Directory Services.

Also you can check the integrity of the Active Directory database using ntdsutil.exe tool (ntdsutil files integrity) and/or semantic database analysis (ntdsutil "sem d a" go)

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up vote 2 down vote accepted

i managed to delete the user by creating a folder, and moving the mangled user into it - then deleting the folder.

Then i re-created Forest Gump.

Still, and actual solution would have been helpful.

  • the event log does not have any synchronization errors
  • there is a backup DC; this was on the primary
share|improve this answer
There are no "backup" and "primary" Domain Controller (DC) computers in Active Directory. All the copies of the database are equal peers. – Evan Anderson Mar 15 '12 at 21:54
All copies of the database are equal, but some are more equal than others. As administrators administrating a domain we have chosen to only ever interact with one server - we think of, and use it as, a primary server. If that database replicates to another server, and that other server handles requests: so be it. – Ian Boyd Mar 16 '12 at 20:02

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